Addition
Residential Permit Application Submittal Requirements
- Read and comply with the Permit guide
- Attach to the application:
- A geotechnical (soils) test report
- A Site Plan
- Construction Documents
- A Cover Sheet including project data, such as Arapahoe County Adopted Design Criteria, Adopted Codes, Zoning Information, Drawing Index, Architect/Consultant Contact information, and Code Compliance method for energy conservation
- Demolition Plan
- Complete Foundation & Framing Plans, stamped and signed by a Colorado registered architect or engineer
- Manufacturer’s installation instructions
- Manufacturers’ window quote sheets for all windows and doors
- A complete set of stamped engineered trusses and truss layout
- Calculations indicating compliance with Chapter 14 of the 2021 IRC (additional are provided in the permit guide)
- Location of any new sub-panel locations (or if the main panel is being replaced)
- Electrical device and lighting layout for each floor level
- Additional requirements and documentation
- Where applicable, an asbestos report, reviewed by the Colorado Department of Public Health and Environment (CDPHE)
- A certificate of sewer availability in case of a new bedroom addition on an Onsite Wastewater Treatment System (O.W.T.S.)
- If new gas appliance(s) are going to be installed, provide a completed Gas Appliance Affidavit for review & approval
- Where an electrical service panel greater than 400 amps is required, provide an engineer’s stamped one-line diagram and panel schedule
- Attachments must comply with these requirements
- Complete your application using Customer Access
- Select the Residential Remodel > Residential Addition or search by ‘addition’
- Pay for your permit online
- A plans reviewer will check your application, plans, and attachments for completeness and accuracy before your permit is issued
- You may be contacted with questions or requests for revisions through the Customer Access Portal
Ready to apply? Click Customer Access to get started